His power level was 46. This was accurate according to the Watchmen storyline. A few years ago, DC made the controversial decision to integrate Watchmen into the mainstream universe. This resulted in 52 universes as well as another 52 which were opposite to the previous 52 and represented a twisted history of events that led to dystopian futures, exactly like the one from the Watchmen, from which Barbatos has gathered many evil Batmen such as a Joker and a Doomsday and formed his Dark Knights. I believe that the Watchmen universe was destroyed in the aftermath of the original comic's events and then Barbatos was created, adopting Dr Manhattan's identity and forming the Dark Multiverse to counter the original Multiverse which would be doomed if it was focused on Captain Atom (Dr Manhattan) and Batman (Nite Owl) rather than Superman, whose emulation by the thought robot is not a coincidence. So Watchmen's Doctor Manhattan should revert to his original 46 power level and this 143 power level should not be for Dr Manhattan but Barbatos instead.

Yes im of a diffrent opinion because Dr Manhattan lives in a world with very few real Metahumans. The world of Watchmen is more based upon Super Normals, characters without real powers. Dr Manhattan may never realy be challenged to prove his power level. Its absolutely crucial who the powers are used against ! Yes he is a realy powerful Metahuman but without a real challenge its hard to tell just how powerful.Also he got an origin of a normal human changed into a Mutate a Metahuman.He was a scientist becoming a character with godly powers.Dr Manhattan do not even have 5 percent of the realy incredible feats of Superman.Dr Manhattan is my number 5 of most powerful superheroes in the worlds of comics.Check out the subject in the Forum section for explanations.

Dr. Manhattan is, let's face it... 100% UNBEATABLE!!! Dr. M is the ULTIMATE of ultimates and even though I personally favor Hulk, I'm under no delusion from favoritism... Dr. M would kill Hulk with a thought! Even everyone's favorite "indestructible" Superman (though not a Man, but an extraterrestrial) would stand ZERO chance against The ULTIMATE Dr. Manhattan... Does anyone have a different opinion than myself, or can you think of another hero/villian which you believe would stand a chance against Dr. M??? 😅... sorry. Oh, before anyone even tries, Doctor Strange also has ZERO chance... Regardless of his Awesomeness...